windowpane

• window pane

From window +‎ pane.

• (UK) IPA^(key): /ˈwɪndəʊˌpeɪn/
• (US) IPA^(key): /ˈwɪndoʊˌpeɪn/

• Audio (AU)

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windowpane (plural windowpanes)

1. A piece of glass filling a window or a section of a window
2. (slang) A gelatin base tab with LSD.
   • 2004, Mary M. Jensen, Introduction to Emotional and Behavioral Disorders, page 94:

     Another form is called a windowpane. Windowpanes are small thin squares of gelatin treated with LSD that look like little pieces of plastic.

   • 2011, Susana Martinez-Conde, Stephen L. Macknik, Sandra Blakeslee, Sleights of Mind:

     When you place a windowpane of LSD on your tongue and watch the world transform into a Salvador Dalí landscape of radiant colors, shimmering geometric shapes, and morphing phantasmagoria while your sense of self dissolves—